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Installation:
• Remove the Front cover.
• Fix the starter housing vertically on a rigid surface free
from vibrations.
• Remove the rubber Grommets for incoming and outgoing
cable Connections. (Fig. 2)
• Connect incoming and outgoing cables as follows:
(Fig. 2)
– Select correct size of cable from Table-A.
– Remove approx. 10mm of insulation.
– Pass the cable through proper cable gland to avoid
ingress of material.
– Connect the cables and tighten the screws firmly.
(Terminal Screws: M4, Tightening Torque: 80-110
Ncm)
– Set the overload relay scale (Fig. 2) using proper screw
driver as per the procedure given below.
– Set the relay to rated current mentioned on motor
name plate.
– Press green button of the contact block (Fig. 2) to start
the motor and wait till it reaches to normal speed.
Reduce the relay settings till it trips.
– Set the relay at slightly higher value.
– Allow a reset time approx 4min. and relay resets on its
own.
– Restart the motor. If the relay does not trip, consider
the relay as properly set. If it trips, set it at little higher
value and recheck.
– Press the red knob (Fig. 2) on the overload relay to
stop the motor
– Fix the front cover. Torque for the Instrument Head
Screws is 80 to 140 N-cm.
Operation:
• ON/OFF Operation
– Rotate the Latch away from OFF push button
– Switch 'ON' the starter by pressing the green push
button (marked 'I') (Fig. 1) on the starter cover.
2
– Switch 'OFF' the starter by pressing the red push
button (marked 'O') (Fig. 1) on the starter cover.
• Reset Operation
– If the overload relay trips, it resets automatically.
(*Allow a reset time of approx. 4 min.)
Maintenance:
• Switch off the starter and disconnect the main supply
by switching the main switch before doing any
maintenance.
• Keep the interior dust free.
• Re-tighten the terminal screws from time to time.
• No maintenance is needed for overload relay. Please do
not open the relay.
• Replace the contactors / contacts of the contactors if they
were severely pitted or when only 40% of the original
contact tips remains.
• Replacement of overload Relay
I. Disconnect the motor wires connected to the relay
terminals.
II. Loosen the outgoing terminals screws of the contactor
(Fig. 3)
III. Disengage the relay terminals & hook from contactor
IV. Take the overload relay of same range
V. Connect & tighten the relay terminals (L1 L2 L3) to the
contactor terminals (T1 T2 T3)
VI. E nsure that the relay hook (Fig.3) is engaged in the
slot of the contactor and slide the relay inwards till the
cover is flush with contactor ribs.
VII.Reconnect the disconnected motor wires to relay and
check the correctness of the starter wiring by referring
to the wiring diagram.
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